GLONASS Compact Data: Daily GNSS Observations from a Global Ground Network

Daily files from a global permanent network of ground-based receivers contain GLONASS observation data with 30-second sampling, stored in RINEX format. The dataset, provided by NASA's Crustal Dynamics Data Information System (CDDIS), supports precise positioning and time synchronization applications. It consists of ground-based observations from the Russian GLONASS satellite system, which is similar to the U.S. GPS in constellation and signal structure.

Use Cases

• Monitoring tectonic plate motion and crustal deformation based on precise satellite positioning data.
• Calibrating and validating GNSS receiver performance using standardized RINEX observation files.
• Improving global time synchronization networks by analyzing high-precision timing signals from GLONASS satellites.
• Studying ionospheric and atmospheric effects on satellite signal propagation through dual-frequency carrier phase data.

Strengths

• Data originates from the authoritative NASA Crustal Dynamics Data Information System (CDDIS).
• Provides global spatial coverage from a permanent network of ground receivers.
• Offers high temporal resolution with 30-second sampling in daily 24-hour files.

Limitations

• Critical metadata is sparse or conflicting; row counts, file sizes, and a precise time range are not provided.
• There is a significant conflict in reported last-updated dates, ranging from 2005 to 2026, casting doubt on data freshness.
• The specific license is only vaguely noted as 'other-license-specified', requiring further investigation for use.

Provenance

Source

NASA Crustal Dynamics Data Information System (CDDIS)

Collection Method

Collected from a global permanent network of ground-based GNSS receivers.

Freshness

Last updated dates conflict: one source reports 2005-06-18, while others report 2026-04-10.

Geography

Global